Patents by Inventor Mike Koehller

Mike Koehller has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Phosphorescent OLED and Hole Transporting Materials for Phosphorescent OLEDs
    Publication number: 20170047519
    Abstract: The present invention relates to phosphorescent organic light-emitting diodes (OLEDs) comprising a hole-transporting or a hole-transporting and an electron-blocking layer comprising N,N,N?,N?-tetraaryl-phenylene-3,5-diamine compounds bearing in position 1 of the phenylenediamine core a 9H-fluorenyl substituent. The inventive compounds are useful as hole-transporting and electron-blocking layer matrices in phosphorescent OLEDs.
    Type: Application
    Filed: April 17, 2015
    Publication date: February 16, 2017
    Inventors: Mike Koehller, Martin Koehler, Bodo Wallikewitz